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lab 6 operating system(four basic options available for the installation of a new operating system)

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Operating System Chapter 6

6.1.2 Describe four basic options available for the installation of a new operating system

 

 A)clean INSTALL

  1. A clean install is done on a new system or in cases where no upgrade path exists between the current OS and the one being installed.  
  2. It deletes all data on the partition where the OS is installed and requires application software to be reinstalled.   
  3. A new computer system requires a clean install.    
  4. A clean install is also performed when the existing OS installation has become damaged in some way.  

B)UPGRADE 

  1.  If you are staying with the same OS platform, doing an upgrade is often possible.   
  2. With an upgrade, system configuration settings, applications, and data are preserved.   
  3. It simply replaces the old OS files with the new OS files. 

Example of UPGRADE


4.The term upgrade refers to the replacement of a product with a newer version of that same product. It is most often used in computing and consumer electronics, generally meaning a replacement of hardware, software or firmware with a newer or better version, in order to bring the system up to date or to improve its characteristics. The word is also used by audiophiles to describe the replacement of a product with a better quality product with the aim of bringing enhancements to sound quality



C)MULTI-BOOT
  • Installing more than one OS on a computer to create a multi-boot system is possible. 
  • Each OS is contained within its own partition and can have its own files and configuration settings. 
  • On startup, the user is presented with a menu to select the desired OS.  
  • Only one OS can run at a time and it has full control of the hardware.
  • As an example of multiboot, it is possible to install Windows XP, Windows Server, and Linux all on the same system.  
  • This setup can be useful in a test environment where only one PC is available but there is a need to test several different OS and applications
Example of MULTI-BOOT

 D)VIRTUALIZATION
  • Virtualization is a technique that is often deployed on servers. 
  • It enables multiple copies of an OS to be run on a single set of hardware, thus creating many virtual machines. 
  • Each virtual machine can be treated as a separate computer.
  • This enables a single physical resource to appear to function as multiple logical resources. 
  • This type of approach generally demands more physical resources such as CPU processing and RAM because multiple OS’s are running on the same machine
Example of VIRTUALIZATION
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